The music has me expecting to see Hoss and the rest of the Cartwrights come over the hill on horses. Maybe for the A-Team arriving. A bit over the top.

I kind of like the shovel. The hinge design, the key to the system IMHO, has some advantages mechanically and it seems pretty stout.

The basic functions are not entirely different from what you see on a basic wood-handled entrenching tool from WW2 but with a bit more refinement perhaps. The chopping edge seems to be more a more refined grind. If it is a better grade of steel they might be onto something. Most entrenching tools are made of a generally unremarkable mild steel.

The saw seems a step up from what you see on most saws. Perhaps it is a better grade of steel, hardened. But it might just be the same old mild steel sharpened to hold up just long enough to do the demonstration. It would be good to inspect the unit after some use.

Clearly they are reaching when they describe some uses. the functionality as shield, grapple and oar are clearly more fanciful than real. The grapnel, what they call 'anchor' is interesting but I'm not sure I would risk life and limb in anything but a desperate situation. The can opener function is marginal and tedious just barely beating pounding the can open with a large rock. If you have cans that need opening your better off with a P-38 or SAK.

The bottle opener is clearly functional, a nice feature, unfortunately very few supplies these days come with bottle caps that need removal.

The wire cutter and ability to grip wire to tie it might come in handy. The hammer seems marginal but possibly useful. Better than nothing if you have a nail to hammer in. The nail puller seems useful but I can't remember ever needing one in the field. I guess if you need to reuse your nails it would be useful.

If I needed an entrenching tool I would give it a try as long as it was $20 or less. A bit more if the steel was a higher grade than usual.